【摘要】 利用重合度理论的延拓引理讨论了一类具有时滞的Schoner竞争模型周期解的存在性,得到了保证系统周期解存在的易于验证的充分条件,同时所得结果可用于具有时间依赖时滞的Schoner竞争模型.更多还原

【Abstract】 The existence of periodic solutions of a category of Schoner competitive model with timelag is discussed by using the lemma in the theory of coincidence degree, so that a sufficient condition of the existence of periodic solutions for the system is obtained with a ready proof. Meantime, the result obtained can be used for the Schoner competitive model with timedependent timelag.更多还原